baber/WOPTO huggingface dataset:
Patent CA-2211063-A1 (CA)
Inventor: THORPE DAVID M
IPC: F24C5/20
Filed: 1997-08-07
Abstract: A collapsible fuel-burning stove includes a burner assembly and a collapsible frame for supporting the burner assembly, the frame including a plurality of support members, the support members being pivotal relative to one another about a common axis on which the burner assembly is supported.
Patent CA-2211197-A1 (CA)
Inventor: FAIR MERV
IPC: H01R24/64
Filed: 1996-02-21
Abstract: A modular plug (10) and multi-pair cable (14) assembly provides reduced near-end crosstalk between two signal pairs (18) of the cable. A modular plug (10) has a plurality of wire-receiving passages (32) disposed in first and second planar arrays spaced one above the other, with the passages (32) of one planar array being staggered in position with respect to the passages of the other planar array. An end of a first wire (38) of each of two signal pairs is received in respective wire-receiving passages (32) of the first planar array and an end of a second wire of the two signal pairs (38) is received in respective wire-receiving passages (32) of the second pair plane in which the wire ends of the second pair are situated. In this manner crosstalk between the two signal pairs resulting from magnetic and electric field coupling is reduced.
Patent CA-2212977-A1 (CA)
Title: Method for plugging gas migration channels in the cement annulus of a wellbore using high viscosity polymers
Inventor: IRANI CYRUS A
IPC: E21B33/13
Filed: 1997-08-14
Abstract: A process for mitigating the effects of gas migration through channels in a cement sheath in a hydrocarbon production well by injecting a mixture of a carrier fluid with a dissolved polymer into the sheath and dropping the polymer out of solution to form polymers to plug the channels. The process utilizes the phase transition parameters of the mixture coupled with well conditions and/or injection parameters to cause the polymer to drop out of solution within the gas migration channels. The mixture can be injected through well perforations in the producing zone or perforations made in the wellbore adjacent the gas migration zone or directly into the cement sheath at the wellhead.
Patent CA-2214406-A1 (CA)
Inventor: VERE HODGE RICHARD ANTHONY
IPC: A61P25/00
Filed: 1996-03-05
Abstract: L'invention concerne l'utilisation d'un composé de la formule (A), de bioprécurseurs ou de sels de ceux-ci acceptables sur le plan pharmaceutique, ainsi que l'utilisation des esters phosphoriques et/ou des dérivés acyle des composés et dérivés susmentionnés, pour la fabrication de médicaments destinés au traitement curatif ou préventif des infections par l'herpèsvirus 8 humain.
Patent CA-2214627-A1 (CA)
Title: Expandable stent
Inventor: PENN IAN M
IPC: A61F2/915
Filed: 1997-09-04
Abstract: An expandable stent comprising a proximal end and a distal end in communication with one another, a tubular wall disposed between the proximal end and the distal end, the tubular wall having a longitudinal axis and a poroussurface defined by a plurality intersecting members arranged to define a first repeating pattern comprised of a polygon having a pair of side walls substantially parallel to the longitudinal axis, each side wall comprising first and second flexure means of the same phase with respect to the longitudinal axis, a concaveshaped first wall having a first apex and a convex-shaped second wall having a second apex, the first wall and the second wall connecting the side walls, at least one of the first apex and the second apex being substantially flat, the stent being expandable from a first, contracted position to a second, expanded position uponthe application of a radially outward force on the stent.
Patent CA-2214947-A1 (CA)
Inventor: SOLSTAD VIDAR
IPC: B66D3/04
Filed: 1997-09-09
Abstract: A device for heaving in chain (2,3) vertically by means of a locking device for the chain comprises one or more pawls (14,14') which engage the chain (2,3) in a combined hydraulic lifting (8) and gripping device (12) with an equivalent pawl system and an approximately 180° guide device (1) for the chain.  The guide device (1) and the lifting (8) and gripping device (12) are integrated in one unit in that the semicircular guide device (1) is hinged in the area which is furthest away from the incoming part of the chain, and that the gripping device consists of one or more pawls (12) which can hold the chain while it lies in its track (4,5) in the guide device (1).  A hydraulic  lifting cylinder (8) is hinged to the guide device (1) close to the incoming part of the chain.
Patent CA-2215013-A1 (CA)
Title: N-substituted indol-3-glyoxylamides having anti-asthmatic, antiallergic and immunosuppressant/immuno-modulating action
Inventor: KUTSCHER BERNHARD
IPC: A61P43/00
Filed: 1997-09-04
Abstract: The invention relates to an N-substituted indol-3-glyoxylamide of formula I:   (see formula I) or an acid addition salt thereof, a pharmaceutical composition comprising the above compound, use of the above compound and a process for preparing the above compound.      Compounds of the above formula have antiasthmatic, antiallergic and immunomodulating activity.
Patent CA-2215878-A1 (CA)
Title: Reversible mower blade
Inventor: PITMAN RICHARD J
IPC: A01D34/73
Filed: 1997-09-10
Abstract: A reversible mower blade is formed from an elongated length of bar stock, the end portions of the blade including respective outer segments twisted in opposite senses about the longitudinal axis of the blade's central portion and respective inner segments also twisted in opposite senses about the axis.  The inner and outer segment which form an end portion of the blade are twisted about the axis in opposite sense relative to one another.
Patent CA-2217461-A1 (CA)
Title: 2-acylaminopropanamides as tachykinin receptor antagonists
Inventor: HOWBERT JAMES JEFFRY
IPC: C07K5/08
Filed: 1996-04-03
Abstract: This invention provides a series of novel substituted propanamides which are useful in the treatment or prevention of a physiological disorder associated with an excess of tachykinins. This invention also provides methods for the treatment of such physiological disorders as well as pharmaceutical formulations which employ these novel compounds.
Patent CA-2217542-A1 (CA)
Inventor: MARTIN JOHN T
IPC: B65G43/08
Filed: 1997-02-28
Abstract: A sensor (6) for detecting the presence of lightweight objects (25) being conveyed on a conveyor (1) of the type having conveyor rollers (5). Each conveyor roller (5) is rotatively mounted on a shaft (4) fixed between the conveyor side frames (2, 3). A selected conveyor shaft (4) has non-rotatively mounted thereon a pair of fulcrum bearings (23), each located between a conveyor side frame (2, 3) and the adjacent end of the roller (5) mounted on the selected shaft (4). A pair of sensor arms (7, 8) are provided, each rockably mounted on one of the fulcrum bearings (23). The sensor arms (7, 8) are substantially identical elongated members having upper ends joined by a shaft (9) on which a plurality of sensor rollers (10) are rotatively mounted.  The sensor arms (7, 8) are rockable between a normal position wherein the sensor rollers (10) are elevated above the adjacent conveyor rollers (5), and a fully depressed position wherein the uppermost surface of the sensor rollers (10) are co-planar with the uppermost surface of the adjacent conveyor rollers (5). An adjustable balance spring (25) balances the sensor arms (7, 8) and rollers (10) to their normal positions. A two-state switching device (37) is mounted on one of the conveyor side frames (2, 3) and is maintained in a first state by the adjacent one of the sensor arms (7, 8) in its normal position, and is released to its second state by the same sensor arm (7, 8) when the same sensor arm (7, 8) is shifted toward its fully depressed position.
Patent CA-2218273-A1 (CA)
Inventor: FARFAD M AMIR
IPC: G03F7/075
Filed: 1997-10-10
Abstract: The process for fabricating a ridge waveguide on a substrate uses a photosensitive sol-gel glass material prepared, according to a first embodiment, by mixing methacryloxypropyltrimethoxysilane (H2C=C(CH3)CO2(CH2)3Si(OCH3)3)    and    methacrylic    acid (H2C=C(CH3)COOH) or, according to a second embodiment, by mixing methacryloxypropyltrimethoxysilane (H2C=C(CH3)CO2)CH2)3Si(OCH3)3) with bis(s-butoxy)aluminoxytriethoxysilane. A thick film of photosensitive sol-gel glass material is first dip coated on at least a portion of the substrate. A photomask is applied to the film of photosensitive sol-gel glass material, and this sol-gel material is exposed to ultraviolet radiation through the opening(s) of the photomask to render a portion of the film insoluble to a given solvent and thereby imprint the ridge waveguide in that film. The thick film is then soaked in this solvent, for example n-propanol to dissolve the unexposed portion of the sol-gel film and leave on the substrate the exposed film portion and therefore the ridge waveguide. The ridge waveguide is heat cured and the heat cured ridge waveguide is covered with a cladding layer.
Patent CA-2218348-A1 (CA)
Title: Synthesis of terminally unsaturated oligomers
Inventor: ITTEL STEVEN DALE
IPC: C08F20/10
Filed: 1996-04-19
Abstract: This invention relates to a method for preparing compositions comprising terminally unsaturated polymers of low molecular weight, referred to as oligomers or macromonomers. In particular, a first oligomer composition is obtained by free radical polymerization of a reaction mixture comprising monomers. Terminally unsaturated oligomers in the first oligomer composition, or a selected portion of the composition, are reinitiated into free radicals in order to continue their oligomerization to a desired endpoint. The process is useful for preparing an oligomer composition having a controlled degree of polymerization. The process is also useful for preparing block copolymers.  Such oligomer compositions or block polymers are useful for preparing engineered or structured polymers used in making various end products, including plastics, coatings, films, and dispersants.
Patent CA-2219273-A1 (CA)
Title: Atrial defibrillator and method of use
Inventor: BARDY GUST H
IPC: A61N1/39
Filed: 1996-02-26
Abstract: An automatic atrial defibrillator which includes a mechanism for sensing the occurrence of atrial fibrillation in a patient's heart and in response thereto delivers an atrial defibrillation pulse. The device also has the ability to determine whether the patient is likely to be asleep. Defibrillation pulses which are at energy levels which would normally be painful to the patient are delivered only in response to occurrences of atrial fibrillation while the patient is determined to likely be asleep. Defibrillation pulses at lower, non-painful levels may be delivered while the patient is not determined to be asleep.
Patent CA-2219415-A1 (CA)
Title: Process for recovering metals from iron oxide bearing masses
Inventor: PENLAND JERRY L
IPC: C21B11/02
Filed: 1996-05-02
Abstract: A process for recovering iron from an iron oxide bearing mass. The process includes forming a bed (27) of lump coke (28) in a vertical shaft furnace (11), feeding the iron oxide bearing mass and scrap metal onto the bed (27) of lump coke (28) and combusting the coke (28) in the coke bed (27) while injecting a plasma gas having a temperature greater than about 5,000 ~F into the coke bed to form a reaction zone (33) within the coke bed (27) having a temperature in excess of 4,000 ~F. The iron oxide bearing mass and scrap metal fed onto the bed (27) of lump coke (28) is molten to form a molten phase containing molten iron oxide and molten scrap metal. The molten phase flows into the reaction zone and a film is formed on the lump coke within the reaction zone, the iron oxide in the film being reduced by carbon from the coke to form molten iron (22) in a solid/liquid reduction. The molten iron (22) is discharged from the furnace (11).
Patent CA-2220443-A1 (CA)
Title: Reduced frction razor head
Inventor: WEXLER FRED CHARLES
IPC: B26B21/44
Filed: 1997-11-07
Abstract: Razor heads  comprising at least one blade and a blade housing comprising a skin engaging surface having a static coefficient of friction not greater than 0.20.   Also disclosed  are  shaving  aids  comprising  a  water insoluble matrix comprising a material having a static coefficient of friction not greater than 0.20 and a water soluble active ingredient.
Patent CA-2221133-A1 (CA)
Title: Method for inhibiting hydrate formation
Inventor: OELFKE RUSSELL H
IPC: C07C7/20
Filed: 1996-06-07
Abstract: A method for inhibiting the formation of clathrate hydrates in a fluid having hydrate-forming constituents involves treating the fluid with an inhibitor comprising a substantially water soluble polymer having a polymer backbone with a pendant C1-C3 alkyl group; the polymer having an average molecular weight between about 1,000 and about 6,000,000. Preferably, the pendant alkyl group is a methyl group. The rate of nucleation growth, and/or agglomeration of gas hydrate crystals in a petroleum fluid stream is reduced using the alkylated polymer backbone inhibitor, thereby inhibiting the formation of a hydrate blockage in the pipe conveying the petroleum fluid stream. Test results are disclosed which unexpectedly show that alkylating the polymer backbone with a methyl group will produce a subcooling for the alkylated polymer that is at least about 2 °F (about 1.1 °C) greater than its nonalkylated counterpart. The inhibitor can be used conveniently at low concentrations, for example in the range of from about 0.01 % to about 5 % by weight of the water present in the oil or gas stream, to effectively treat a petroleum fluid having a water phase.
Patent CA-2221150-A1 (CA)
Title: Mattress and method for preventing accumulation of carbon dioxide in bedding
Inventor: SCHMID WILLIAM R
IPC: A47D9/00
Filed: 1996-05-30
Abstract: A mattress assembly (30), comprising: substantially nonporous bottom (42) and side (41) walls forming a mattress foundation (40); a mattress inner core (50) disposed in the mattress foundation (40) being permeable to air; nonporous top cover (60) covering the mattress inner core (50), the nonporous top cover (60) having apertures (61) at predetermined locations to allow the flow of air therethrough; and a fan (49) disposed with the mattress assembly (30) for forcing air into the mattress inner core (50) whereby the air is forced out the top cover (60) so as to reduce the accumulation of carbon dioxide in bedding on the top cover (60) of the mattress (30).
Patent CA-2221252-A1 (CA)
Title: Slow-dissolving multi-functional sanitizer and clarifier
Inventor: RAGIN OSCAR T
IPC: A01N59/06
Filed: 1996-05-10
Abstract: A slow-dissolving sanitizing and clarifying puck for use in water such as swimming pool water preferably includes about 65 % to about 80 % trichloro-s-triazinetrione, about 4 % to about 12 % sodium tetraborate, about 10 % to about 22 % aluminum sulfate, and about 1 % to 5 % glycoluril.
Patent CA-2222206-A1 (CA)
Inventor: BERBNER HEINZ
IPC: A41D31/00
Filed: 1996-06-20
Abstract: The invention concerns a fibre mixture containing: (a) between 10 and 90 parts by weight of melamine resin fibres; and (b) between 90 and 10 parts by weight of natural fibres. The invention further concerns a method of producing this fibre mixture and the use thereof for preparing woven textiles, nonwoven fabrics, yarns, strips or shaped parts.
Patent CA-2227539-A1 (CA)
Inventor: WILLIAMS LLEWELLYN EVERETT
IPC: B60T1/06
Filed: 1998-02-19
Abstract: A vehicle having a hydrostatic transmission is provided with a main speed control lever for governing the vehicle's maximum forward speed and an independently adjustable tracking control mechanism for coordinating output of left and right hydraulic wheel motors.
Patent CA-2228101-A1 (CA)
Inventor: BORDENER ROBERT
IPC: A47F9/02
Filed: 1998-01-29
Abstract: An improved process for creating a countertop having an imitation veined or marbleized surface including the steps of establishing a horizontally positioned mold which is constructed from an upwardly facing mold surface which is bounded by a plurality of sides to create a negative cavity enclosure. A first plurality of elongated and discrete strips of a densified polyester/acrylic resin are applied onto the upwardly directed mold face either by a polypropylene squeeze bottle or through a trigger actuated air gun as an atomized mixture of fluid resin and pressurized air. The first plurality of strips of resin material are distributed across the face of the mold according to a desired pattern and are allowed to set for a period of time, following which at least one second continuous coat of a resin material is applied over the first plurality of discrete strips according to a desired thickness of up to one-half an inch. A third continuous coat of a backer resin may be applied over the second continuous coat and the first plurality of strips and second continuous coat are each selected from a desired color to arrive at an appealing veined or marbleized contrast. A recipe of the resin material may further be augmented with a percentage additional of a silacious material to increase hardness.
Patent CA-2233955-A1 (CA)
Title: Rubber thread
Inventor: WILHELM JOHN F
IPC: B29C48/05
Filed: 1996-09-27
Abstract: The invention features a rubber thread (10) that features in cross-section, two or more rubber portions. One rubber portion can be, for example, the central core (12) of the rubber thread, while a second rubber portion can be a jacket (14) surrounding the central core. The rubber thread comprising the two rubber portions can have a mix of properties, some provided by the first rubber portion, and others by the second rubber portion. For example, in the core/jacket embodiment, the core can be composed of natural rubber, and thus provide the thread with excellent resiliency, and the jacket can be composed of a synthetic rubber that is more resistant to abrasion than natural rubber. The resultant two-portion rubber thread will, therefore, benefit from the characteristics of both components. The invention also features a method of making a rubber thread that has in cross-section two rubber portions.
Patent CA-2234073-A1 (CA)
Title: Coiled-coil heterodimer methods and compositions for the detection and purification of expressed proteins
Inventor: IRVIN RANDALL T
IPC: C12N15/62
Filed: 1996-10-04
Abstract: Methods and compositions employing complementary heterodimer-subunit peptides capable of forming a .alpha.-helical coiled-coil heterodimer for affinity purification and detection of fusion proteins.
Patent CA-2235796-A1 (CA)
Inventor: FLORES ERICK
IPC: H04L9/08
Filed: 1998-05-20
Abstract: Process for allowing direct encrypted communication between two terminals of a mobile radio network and groupings of stations and terminals involved. Process for allowing direct encrypted communication in one hop or simply direct between two terminals of a mobile radio network via satellite(s) and/or GSM/DCS after one of them is called via a fixed mobile radio station (2) of a network. After a first phase executed in the normal manner a numbering key is simultaneously generated by the identification card (0) associated with the calling terminal (1) and by the command structure of the network for the encryption/decryption of the data transmitted by radio link between the said calling terminal and the station. The said numbering key is then stored in the memory of the station, for transmission to the called terminal (3), when a radio link is established between the said station and the said called terminal for the communication requested by the calling terminal, to allow encryption/decryption of the data exchanged between the called terminal and calling terminal.
Patent CA-2238725-A1 (CA)
Title: Flexible joint
Inventor: LIEW ANTHONY FUI LIANG
IPC: F16L51/02
Filed: 1996-11-27
Abstract: A flexible joint (2) comprises a first rigid wall portion (4), a second rigid wall portion (14), a flexible wall portion (12) extending between the first and second rigid wall portions (4, 14), the three wall portions defining a longitudinal passage through the joint and being arranged along the length of the passage, a sleeve (22) secured at one end to the first rigid wall portion (4) and extending through the passage so as to overlap the second rigid wall portion (14), the sleeve (22) being spaced from the flexible wall portion (12) and free to move relative to the second rigid wall portion (14). In one aspect, a layer of insulating material (24) is provided on a surface of the sleeve (22) whilst leaving the space between the sleeve (22) and the flexible wall portion (12) substantially free to be occupied by process fluid when in use. In a second aspect, the length of the portion of the sleeve (22) overlapping the second rigid wall portion (14) is at least five times the distance of the sleeve (22) from the second rigid wall portion (14), as measured perpendicular to the sleeve (22).
Patent CA-2241902-A1 (CA)
Title: Protocol converter apparatus and method
Inventor: HADLAND JOHN K
IPC: H04L29/06
Filed: 1996-12-09
Abstract: A protocol converter (14) allows communications between a host (12) and remotes (16, 18, 20) that operate using different communications protocols. The protocol converter (14) includes processes (50) and subsystems (60) for establishing a communications session between the remotes (16, 18, 20) and the host (12). The processes include a session manager (52), a set of facilities (54), and a set of utilities (56). The subsystems include a logon subsystem (62), a communications subsystem (64), and a translator subsystem (66).
Patent CA-2242104-A1 (CA)
Title: Engine enclosure
Inventor: PETERS MICHAEL DENNIS
IPC: B62D25/10
Filed: 1998-08-05
Abstract: A modular engine enclosure comprised of a hood and baffle is provided to channel cooling air along passages formed between their adjacent surfaces to the radiator of a water cooled engine. The passages provide acoustic air barriers and along with selected enclosure surfaces covered with sound absorbing foam, serve to contain engine sounds within the enclosure. The passages receive air from a generally upright inlet opening and direct it evenly over the top surface of the horizontally oriented radiator.  After being drawn through the radiator, the air is exhausted generally horizontally out the back of the engine compartment. The modular construction of the enclosure allows it to be easily raised and/or removed so that maintenance and service activities can be performed on the engine and its components.
Patent CA-2243636-A1 (CA)
Title: Contaminated medical waste disposal system and method
Inventor: RADFORD FRED R
IPC: A61M1/00
Filed: 1997-01-24
Abstract: This invention is a system for collecting, transport-ing and disposing of biofluids, such as those collected in a hospital or other health facility, in a manner to pro-tect an operator and related support devices and systems from contact with potentially hazardous biofluids. The system (10) provides a portable container (19) adapted to be connected to the patient's suction tubes (15) and also to the vacuum source, so that biofluid is collected in the container. The container is then moved to a base dis-posal location (14), and an outlet valve of the valve (38) and connecting assembly of the container is connected to the base assembly, and the valve of the container moved to an open position. A sealed discharge passageway is formed, and the biofluid flows through this passageway.  The valve of the container is closed, and the container removed and either disposed of, or washed, and sanitized so as to be ready for reuse. There is also provided a plug (52) and manifold assembly to removably interfit with the container. The plug and manifold assembly can be made disposable or can be washed and disinfected for reuse.